<template>
  <div>
    <Header></Header>
    <router-view :key="$route.query.t"/>
    <el-backtop >
 
      <i class="el-icon-arrow-up"></i>

  </el-backtop>
    <Footer></Footer>
  </div>
</template>

<script>
export default {
  name: 'HelloWorld',
  data () {
    return {
      msg: 'Welcome to Your Vue.js App'
    }
  }
}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>

</style>
